This is the real issue. It's not so much the intentional sale of your info for profit, or, for the majority of people, the threat of surveillance states finding out you're one of their enemies of the month. Most people are hit by criminals using the info to target them. For example, if they know your adult child's information and have samples of their voice data from social media, they can make an AI bot to impersonate them and ask for money. Or, if robbers happen to be targeting a neighborhood, they can use your location information to determine when you aren't home. These are much more complex than most of these scams, though. Most are much simpler, but using some combination of info from social media, security breach data, location data, etc. All of that data is being bought and sold now. Mostly by "legitimate" companies. Things like that are the major consequences for the majority of people.